<!DOCTYPE html>
<html>
<body>
<div role="textbox" tabindex="0" aria-label="not editable">
  focusable:
  <button>ok</button>
  <a href="#">link</a>
  <label>name: <input></label>
</div>
<div role="textbox" contenteditable aria-label="editable">
  focusable:
  <button>ok</button>
  <a href="#">link</a>
  <label>name: <input></label>
</div>
<div role="textbox" aria-label="not editable or focusable">
  focusable:
  <button>ok</button>
  <a href="#">link</a>
  <label>name: <input></label>
</div>
<div role="textbox" aria-label="not editable, img child"><img /></div>
</body>
</html>
